Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder
Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage...
| Main Authors: | , , , , |
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| Format: | Proceeding Paper |
| Language: | English |
| Published: |
Asian Network for Scientific Information
2011
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/8033/1/KHALIR_ET_AL_110811.pdf |
| _version_ | 1825644976026943488 |
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| author | Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran |
| author_facet | Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran |
| author_sort | Wan Mohd Khalir, Wan Khaima Azira |
| collection | IIUM |
| description | Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage, shaking rate and temperature. The optimum adsorbent dosage was found to be at 0.02 g with more than 80 % Pb(II) removal. The amount of Pb(II) adsorbed (mg/g) increased with increasing agitation rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔHº), free energy change (ΔGº) and entropy change (ΔSº) were computed and Pb(II) adsorption process was found to be exothermic. Fixed-bed column fitted well the Thomas and Yoon-Nelson models with correlation coefficients of R2 > 0.95.
Key words: Adsorption; Lead; Rubber leaf powder; Thermodynamic; Xanthation
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| first_indexed | 2024-03-05T22:40:48Z |
| format | Proceeding Paper |
| id | oai:generic.eprints.org:8033 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T22:40:48Z |
| publishDate | 2011 |
| publisher | Asian Network for Scientific Information |
| record_format | dspace |
| spelling | oai:generic.eprints.org:80332013-08-03T23:27:21Z http://irep.iium.edu.my/8033/ Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran QD Chemistry Rubber (Hevea brasiliensis) leaf powder was modified by xanthation process and its potential in removing toxic Pb(II) ion from aqueous solutions was investigated in batch experiments. Pb(II) adsorption efficiency was found to be affected by several physicochemical parameters such as adsorbent dosage, shaking rate and temperature. The optimum adsorbent dosage was found to be at 0.02 g with more than 80 % Pb(II) removal. The amount of Pb(II) adsorbed (mg/g) increased with increasing agitation rate but decreased with increasing adsorbent dosage and temperature. Thermodynamic parameters such as enthalpy change (ΔHº), free energy change (ΔGº) and entropy change (ΔSº) were computed and Pb(II) adsorption process was found to be exothermic. Fixed-bed column fitted well the Thomas and Yoon-Nelson models with correlation coefficients of R2 > 0.95. Key words: Adsorption; Lead; Rubber leaf powder; Thermodynamic; Xanthation Asian Network for Scientific Information 2011 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/8033/1/KHALIR_ET_AL_110811.pdf Wan Mohd Khalir, Wan Khaima Azira and Megat Hanafiah, Megat Ahmad Kamal and Mat So'ad, Siti Zaiton and Wan Ngah, Wan Saime and Abdul Majid, Zafri Azran (2011) Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder. In: ICCEIB -SOMChE 2011, 28 Nov. - 1 Dec., 2011, Universiti Malaysia Pahang. |
| spellingShingle | QD Chemistry Wan Mohd Khalir, Wan Khaima Azira Megat Hanafiah, Megat Ahmad Kamal Mat So'ad, Siti Zaiton Wan Ngah, Wan Saime Abdul Majid, Zafri Azran Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder |
| title | Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder |
| title_full | Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder |
| title_fullStr | Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder |
| title_full_unstemmed | Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder |
| title_short | Adsortion of lead onto Xanthated modified Rubber (Hevea Brasiliensis) powder |
| title_sort | adsortion of lead onto xanthated modified rubber hevea brasiliensis powder |
| topic | QD Chemistry |
| url | http://irep.iium.edu.my/8033/1/KHALIR_ET_AL_110811.pdf |
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